LM4041DIM3-1.2/NOPB

Voltage Reference Overview

The LM4041DIM3-1.2/NOPB is a micropower shunt voltage reference from Texas Instruments, providing a fixed 1.225 V output in a SOT-23 package. It features an initial accuracy of ±0.5% at 25°C and a temperature coefficient of 150 ppm/°C. The device operates with a minimum current of 60 µA and a maximum cathode current of 12 mA. It functions within an extended temperature range of -40°C to +125°C and maintains stability across all capacitive loads without requiring external stabilization components.

Voltage Reference Feature Summary

• Provides stable reverse breakdown voltage with low dynamic impedance and low noise characteristics
• Ensures stability with any capacitive load without the need for external stabilizing capacitors
• Utilizes fuse and Zener-zap reverse breakdown trim during wafer sort for high precision
• Employs bandgap reference temperature drift curvature correction for wide operating range

Voltage Reference Applications

• Space-critical applications utilizing sub-miniature surface-mount packages
• Portable designs constrained by power supply limitations
• Precision measurement systems requiring stable reference voltages
• Data acquisition circuits needing accurate analog-to-digital conversion references

Voltage Reference Procurement Notes

Verify the specific suffix 'DIM3' corresponds to the D-grade (±0.5%) tolerance and industrial/extended temperature rating (-40°C to +125°C). Confirm the 'NOPB' designation indicates lead-free and RoHS compliance. Ensure the ordering part number matches the required package type and accuracy grade for your specific design constraints before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in a compact SOT-23 form factor. It is suitable for designs prioritizing low quiescent current and high precision over a wide temperature range. Consider alternative grades if tighter initial accuracy or lower temperature coefficients are necessary for the application.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references. The series offers both fixed and adjustable versions in SC-70 and SOT-23 packages. The LM4041-N is designed to eliminate external capacitor requirements while maintaining stability, making it a versatile solution for space-constrained and battery-powered electronic systems.

Voltage Reference Replacement Considerations

LM4041DEM3-1.2/NOPB: Offers ±1% accuracy instead of ±0.5%. LM4041CIM3X-1.2/NOPB: Provides ±0.5% accuracy but may differ in packaging variant. Verify pinout compatibility and thermal performance when substituting.